A Scherrer Formula and interpreting values

I have developed a script in MATLAB that can detect peaks from datas and that can find FWHM of detected peaks. Scripts gives reliable results but crystallites sizes are different a little from this online calculator.

I have developed a script in MATLAB that can detect peaks from datas and that can find FWHM of detected peaks. Scripts gives reliable results but crystallites sizes are different a little from this online calculator.

In case you are interested please refer to Retrieved mailing list.
There is freeware available that can help in determinate grain size like Fityk.
You can visit also CCP14 (sends for computational crystallography) where you can accesses to many software, shareware, freewares and applications.